DALLAS (TIP): The National Human Trafficking Resource Center has released its 2013 data and it may or may not come as a surprise to you that Texas ranks No. 2 in number of calls placed to the hotline.

Texas maintained its No. 2 position, behind California, even as overall calls skyrocketed last year. It’s safe to say that a large number of those calls came from the North Texas region, as the Dallas-Fort Worth traditionally has been a relative hotbed for human trafficking.

Experts have said that has to do with the convergence of highways in the region as well as the area’s proximity to the U.S.-Mexico border. While it’s difficult to capture the specific data because of the hidden nature of the crime, Mosaic Family Services in Dallas, for example, typically serves 100 victims a year. And in 2012, the national hotline received about 250 calls from the city of Dallas alone.